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Finding the Fourth Proportional to 66,299.84, 91,527.68 and 51,158.51

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Solution

The fourth proportional to 66,299.84, 91,527.68 and 51,158.51 is: 70,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,299.84 : 91,527.68 = 51,158.51 : x
  2. Step 2: Convert to fraction form
    66,299.84/91,527.68 = 51,158.51/x
  3. Step 3: Cross multiply
    66,299.84x = 91,527.68 × 51,158.51
  4. Step 4: Simplify right side
    66,299.84x = 4,682,419,476.76
  5. Step 5: Solve for x
    x = 4,682,419,476.76/66,299.84
  6. Step 6: Final answer
    x = 70,624.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.